Audi Q3 8U Door Brake Stopper Check Strap Rear Left Right N/O/S 8U0839249D

Audi Q3 8U Door Brake Stopper Check Strap Rear Left Right is a precision component from the Doors and door panels group, responsible for the controlled opening range of the rear doors. It ensures stable positioning of the door leaf, limits uncontrolled opening, and improves the daily comfort of vehicle operation.

Specifications and technical data

• SKU: 8U0839249D
• Mark: Audi
• Condition: Used
• OEM Part Number: 8U0839249D
• Substitutable numbers: 8U0839249D, 8U0 839 249 D
• Location on the vehicle: Rear, Right, Left
• Category: Doors & Door Skins

Function and application in the Audi Q3 8U

The door brake stopper in the Audi Q3 8U is responsible for the smooth guidance of the rear doors during opening and closing. This component stabilizes the movement of the door leaf, holds it in selected positions, and reduces the stress acting on the hinges and door skin. As a result, the user gains better control over the door operation, which is particularly important on inclined surfaces or in strong winds.

The presented component is designed for installation in the rear part of the body, on the left or right side, which facilitates service and allows for maintaining consistent operating characteristics for both rear doors.

Construction and body fitment

The stopper is structurally integrated with the hinge and door mounting system, working in conjunction with the skin from the Doors and door panels group. Its task is to:

• control the maximum door opening angle,
• provide tactile stop points,
• dampen sudden movements of the door leaf.

Such a solution reduces the risk of damage to the door edges and adjacent body elements, and also improves the ergonomics of using the rear passenger area.

Benefits of installation and practical aspects

The use of the correct door brake stopper in the Audi Q3 8U translates into measurable operational benefits:

• stable door positioning – the door remains in the selected position without a tendency to close automatically or open excessively,
• better protection of door edges and paint – lower risk of contact with other vehicles or obstacles,
• more predictable mechanism operation – comfortable use for the driver and passengers.

A component of this type is particularly important in vehicles used intensively in the city, where frequent opening and closing of the doors requires repeatable, predictable mechanism performance.

Product characteristics and condition

The offered door brake stopper is a part intended for installation in the rear left or right body zone of the Audi Q3 8U. The product comes from the group of original manufacturer solutions, which promotes proper fitment to factory mounting points and compatibility with the door structure.

The part is in used condition, meaning it has been removed from a vehicle and may show signs of previous use, while maintaining the functionality required for further use after proper installation.

Support with selection and expanding the scope of repair

When working on the rear body area, it is worth considering a comprehensive verification of other door elements – hinges, mounts, and seals – to restore the consistent operation of the entire system in one service operation. The selection of the correct stopper for a specific version of the Audi Q3 8U is best confirmed based on vehicle data, which minimizes the risk of improper fitment.

If you are planning a comprehensive repair or modernization of the door area in your Audi and need other elements from the same group, such as skins, reinforcements, or door frames, check the available parts in the Audi Doors and door panels category.

If you are interested in broader knowledge about selecting body components, mechanical systems, or accessory elements in other models, the practical Global Parts service guide may be helpful – check the article BMW B58 code – checklist before buying a turbocharger and intercooler, which shows how to approach verifying part compatibility on the secondary market step by step.